Motivation and definition of the inverse of a matrix
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- January 5th, 2017
- 7 years ago
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Notation for matrix entries, diagonal matrix, square matrix, identity matrix, and zero matrix.
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- February 17th, 2017
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The definition of matrix inverse is motivated by considering multiplicative inverse. The identity matrix and matrix inverse are defined.
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- February 17th, 2017
- 7 years ago
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In this section we specialize further and consider matrices with equal numbers of rows and columns, which when considered as coefficient matrices lead to systems with equal numbers of equations and variables. We will see in the second half of the course (Chapter D, Chapter E, Chapter LT, Chapter R) that these matrices are especially important.
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- September 11th, 2017
- 7 years ago
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